are many kinds _____, but I don’tknow which to buy.

Mr. Painter wanted to design a new system to ________ the water in his garden in heavy rains.

The hall had no spare seats left last night ________，the performance achieved a great success [ ]

en’t looking well Anythingthe matter—I’ve been surfing the net too long I’ma bit tiredI can hold on,____

Workers who cannot speak good English may be at disadvantage ____ with foreign customers.